A machine tool

Abstract

The utility model relates to the field of machine tool, concretely relates to a machine tool, including base, stand, tool magazine and crossbeam, the crossbeam is set up in the stand, is provided with the guide rail group on the crossbeam, is provided with four machine heads of movable on the guide rail, is provided with the first limiting structure and the second limiting structure for the machine head is positioned respectively on the two mounting surfaces of crossbeam, ensures accurate positioning and effective limitation in the movement process to the machine head, the position of another machine head on the same mounting surface can be limited by the limiting structure, to avoid the mutual collision of two machine heads. The machine tool of the application is through drive assembly and limiting structure configuration, has improved machining efficiency, precision, safety and adaptability significantly, effectively avoids the accidental collision between machine heads, greatly reduces the risk of machine tool damage and operator injury.

Description

Technical Field

[0001] This utility model relates to the field of machine tools, and more specifically, to a machine tool. Background Technology

[0002] In the field of machining, machine tools are key equipment, and their structural design and functional configuration directly affect machining efficiency and safety. Traditional machine tool designs often use a single guideway system to support and move the machining head. This design is difficult to handle complex machining tasks, especially when multi-faceted machining or high-precision machining is required simultaneously, where the limitations of a single guideway system are particularly evident.

[0003] Existing multi-head gantry milling machines typically use a single lead screw structure for the X-axis, with a fixed head spacing. To maintain a relatively compact overall machine size, the head spacing is generally not designed to be large. This limits the size of workpieces that can be machined, thus restricting their processing capabilities. Furthermore, a smaller head spacing increases the probability of collisions. Therefore, a machine tool with a relatively small overall size that prevents head collisions is needed to improve its practicality. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide a machine tool that solves the issues of large size and easy contact between existing multi-head machine tools.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] This utility model provides a machine tool including a base, a worktable, a tool magazine, a column, and a crossbeam. The worktable and tool magazine are mounted on the base. The column includes a first column and a second column, which are located on both sides of the base. The crossbeam is mounted across the first column and the second column. A guide rail assembly for mounting the machine head is provided along the length of the crossbeam. The crossbeam includes a first mounting surface and a second mounting surface. A movable first machine head, a second machine head, a third machine head, and a fourth machine head are mounted on the guide rail assembly. A drive assembly for driving the machine head is provided on the crossbeam. The drive assembly includes a first drive component, a second drive component, a third drive component, and a fourth drive component, which are respectively connected to the first machine head, the second machine head, the third machine head, and the fourth machine head. The first drive component and the second drive component are mounted on the first mounting surface, and the third drive component and the fourth drive component are mounted on the second mounting surface. The travel ranges of the first machine head and the second machine head at least partially overlap, and the travel ranges of the third machine head and the fourth machine head at least partially overlap.

[0007] The crossbeam is equipped with a first limiting structure and a second limiting structure. The first limiting structure is used to limit the movement of the first machine head to the stroke range of the second machine head; the second limiting structure is used to limit the movement of the fourth machine head to the stroke range of the third machine head.

[0008] Furthermore, the crossbeam is also equipped with a third limiting structure and a fourth limiting structure. The third limiting structure is used to limit the movement of the second machine head to the stroke range of the first machine head; the fourth limiting structure is used to limit the movement of the third machine head to the stroke range of the fourth machine head.

[0009] Furthermore, the first limiting structure and the third limiting structure are disposed above the first mounting surface of the crossbeam, and the second limiting structure and the fourth limiting structure are disposed above the second mounting surface of the crossbeam.

[0010] The first limiting structure, the third limiting structure, the fourth limiting structure, and the second limiting structure are arranged in sequence.

[0011] Furthermore, it also includes a detection module mounted on the crossbeam; the detection module includes:

[0012] The first detection module is located at the intersection of the first drive assembly and the second drive assembly. The first detection module is used to issue a first alarm signal when it detects that the first head is located at the intersection of the first drive assembly and the second drive assembly or enters the travel range of the second head.

[0013] The second detection module is located at the intersection of the first drive assembly and the second drive assembly. The second detection module is used to issue a second alarm signal when it detects that the second head is located at the intersection of the first drive assembly and the second drive assembly or enters the stroke range of the first head.

[0014] The third detection module is located at the intersection of the third drive assembly and the fourth drive assembly. The third detection module is used to issue a third alarm signal when it detects that the third machine head is located at the intersection of the third drive assembly and the fourth drive assembly or enters the stroke range of the fourth machine head.

[0015] The fourth detection module is located at the intersection of the third and fourth drive components. This module is used to issue a fourth alarm signal when it detects that the fourth drive head is located at the intersection of the third and fourth drive components or has entered the travel range of the third drive head.

[0016] Furthermore, it also includes an alarm module, which includes:

[0017] The first alarm module is connected to the first detection module and is used to issue an alarm based on the first alarm signal.

[0018] The second alarm module is connected to the second detection module and is used to issue an alarm based on the second alarm signal.

[0019] The third alarm module is connected to the third detection module and is used to issue an alarm based on the third alarm signal.

[0020] The fourth alarm module, connected to the fourth detection module, is used to issue an alarm based on the fourth alarm signal.

[0021] Furthermore, the machine tool also includes a control system connected to the detection module and the drive components. The control system is used to control the start / stop of the first drive component, the second drive component, the third drive component and the fourth drive component respectively based on the first alarm signal, the second alarm signal, the third alarm signal and the fourth alarm signal.

[0022] Furthermore, the first drive component and the fourth drive component are positioned far apart from each other, while the second drive component and the third drive component are positioned close to each other.

[0023] The machine tool also includes a first locking structure and a second locking structure disposed on the crossbeam. The first locking structure is located at the end of the first mounting surface and on the side away from the second mounting surface, and is used to lock the first machine head. The second locking structure is located at the end of the second mounting surface and on the side away from the first mounting surface, and is used to lock the fourth machine head.

[0024] Furthermore, it also includes a reset module for issuing a reset signal. The reset module is connected to the control system, and the control system controls the first machine head, the second machine head, the third machine head and the fourth machine head to move to the standby position based on the reset signal.

[0025] Furthermore, the crossbeams are integrated into one piece.

[0026] Furthermore, the crossbeam includes a first sub-crossbeam and a second sub-crossbeam, with a first mounting surface disposed on the first sub-crossbeam and a second mounting surface disposed on the second sub-crossbeam;

[0027] The machine tool also includes a third column located between the first column and the second column, a first sub-beam mounted on the first column and the third column, and a second sub-beam mounted on the third column and the second column.

[0028] Furthermore, the guide rail assembly includes a first guide rail, a second guide rail, a third guide rail, a fourth guide rail, a fifth guide rail, and a sixth guide rail. The first guide rail, the second guide rail, and the third guide rail are arranged alternately from top to bottom on the first mounting surface, and the fourth guide rail, the fifth guide rail, and the sixth guide rail are arranged alternately from top to bottom on the second mounting surface.

[0029] The first and second machine heads are movably mounted on the first, second, and third guide rails, the first drive assembly is mounted between the first and second guide rails, and the second drive assembly is mounted between the second and third guide rails.

[0030] The third and fourth machine heads are movably mounted on the fourth, fifth, and sixth guide rails, the third drive assembly is mounted between the fifth and sixth guide rails, and the fourth drive assembly is mounted between the fourth and fifth guide rails.

[0031] The beneficial effects of this utility model are as follows: Limiting structures (including a first limiting structure and a second limiting structure) are respectively set on the mounting surfaces on both sides of the crossbeam, ensuring precise positioning and effective restriction of the corresponding machine head during movement. This design effectively prevents the machine head from exceeding the safe range due to accidental movement, improving the operational safety and reliability of the machine tool. When the second or third machine head needs to move to the travel range of another machine head on the same mounting surface for processing, the limiting structure can correspondingly restrict the first or fourth machine head outside the travel range of the second or third machine head, thus avoiding collisions between the two machine heads on the same mounting surface. Furthermore, since the limiting structure restricts the machine head outside the travel range of another machine head on the same mounting surface, the travel range of the other machine head can be increased, facilitating the processing of larger workpieces and expanding the versatility and application scenarios of the machine tool. This machine tool, through its innovative guide rail assembly and limiting structure configuration, significantly improves processing efficiency, accuracy, safety, and adaptability, providing an efficient, flexible, and reliable solution for the modern machining field. Attached Figure Description

[0032] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0033] Figure 1 This is a structural diagram of the machine tool of this utility model.

[0034] Figure 2 This is a structural diagram of the drive component of this utility model;

[0035] Figure 3 This is a schematic diagram of the limiting structure of this utility model;

[0036] Figure 4 This is a schematic diagram of the principle of the control system of this utility model.

[0037] The attached figures are labeled as follows:

[0038] 1-Base;

[0039] 2-Workbench;

[0040] 3-Tool magazine;

[0041] 4-Column, 41-First column, 42-Second column, 43-Third column;

[0042] 5-Crossbeam, 51-First mounting surface, 52-Second mounting surface, 53-First sub-crossbeam, 54-Second sub-crossbeam;

[0043] 6-Guide rail assembly, 61-First guide rail, 62-Second guide rail, 63-Third guide rail, 64-Fourth guide rail, 65-Fifth guide rail, 66-Sixth guide rail;

[0044] 7-Head unit, 71-First head unit, 72-Second head unit, 73-Third head unit, 74-Fourth head unit;

[0045] 8-Drive component, 81-First drive component, 82-Second drive component, 83-Third drive component, 84-Fourth drive component;

[0046] 9-Detection module, 91-First detection module, 92-Second detection module, 93-Third detection module, 94-Fourth detection module;

[0047] 10 - Alarm module, 101 - First alarm module, 102 - Second alarm module, 103 - Third alarm module, 104 - Fourth alarm module;

[0048] 100-Control System;

[0049] A - First limiting structure, B - Second limiting structure, C - Third limiting structure, D - Fourth limiting structure, E - First locking structure, F - Second locking structure. Detailed Implementation

[0050] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0051] refer to Figure 1 , Figure 2 and Figure 3This utility model provides a machine tool including a base 1, a worktable 2, a tool magazine 3, a column 4, and a crossbeam 5. The worktable 2 and the tool magazine 3 are mounted on the base 1. The column 4 includes a first column 41 and a second column 42, which are located on both sides of the base 1. The crossbeam 5 is mounted across the first column 41 and the second column 42. A guide rail assembly 6 is provided along the length of the crossbeam 5, including a first guide rail 61, a second guide rail 62, a third guide rail 63, a fourth guide rail 64, a fifth guide rail 65, and a sixth guide rail 66. The base 1 is made of high-strength cast iron, providing excellent stability and load-bearing capacity. The upper surface of the base 1 is flat and used to mount the worktable 2. The worktable 2 is mounted on the base 1 and uses precision guide rails to move in the X and Y directions, used to place and fix the workpiece to be processed. The surface of the worktable 2 is precision ground to ensure machining accuracy. Tool magazine 3 is located on one side of worktable 2 and contains a variety of tools. It enables rapid tool changing through an automatic tool changer, thereby improving machining efficiency.

[0052] The crossbeam 5 includes a first mounting surface 51 and a second mounting surface 52. The guide rail assembly 6 is equipped with a movable machine head 7, including a first machine head 71, a second machine head 72, a third machine head 73 and a fourth machine head 74. The four machine heads can work independently or collaboratively according to processing requirements to achieve simultaneous processing of multiple surfaces or multiple processes.

[0053] The machine tool also includes a drive assembly 8, which includes a first drive assembly 81, a second drive assembly 82, a third drive assembly 83, and a fourth drive assembly 84.

[0054] The first drive assembly 81 is disposed on the first mounting surface 51 and arranged parallel to the first guide rail 61. It is connected to the first machine head 71 via a precision lead screw or linear motor. The first drive assembly 81 is responsible for driving the first machine head 71 to move precisely along the direction of the first guide rail 61 to perform specific processing tasks.

[0055] The second drive assembly 82 is also disposed on the first mounting surface 51. The first drive assembly 81 and the second drive assembly 82 are distributed vertically, and the second drive assembly 82 and the first drive assembly 81 are partially staggered. The second drive assembly 82 is connected to the second machine head 72 through a precision lead screw or linear motor, and is responsible for driving the second machine head 72 to move precisely along the direction of the second guide rail 62.

[0056] The third drive assembly 83 is mounted on the second mounting surface 52 and arranged parallel to the third guide rail 63. It is connected to the third machine head 73 via a precision lead screw or linear motor. The third drive assembly 83 is responsible for driving the third machine head 73 to move precisely along the direction of the third guide rail 63.

[0057] The fourth drive assembly 84 is disposed on the second mounting surface 52. The fourth drive assembly 84 and the third drive assembly 83 are distributed vertically and are partially staggered. The fourth drive assembly 84 is connected to the fourth machine head 74 through a precision lead screw or linear motor, and is responsible for driving the fourth machine head 74 to move precisely along the direction of the fourth guide rail 64.

[0058] The first drive assembly 81 includes a motor, a lead screw, and a tailstock. One end of the lead screw is connected to the motor, and the other end is connected to the tailstock. The lead screw passes through the first machine head 71. After the motor starts, the lead screw drives the first machine head 71 to move on the first guide rail 61. The four drive assemblies have the same structure and principle. The first drive assembly 81 is positioned at the end near the first mounting surface 51 and extends towards the second mounting surface 52. The second drive assembly 82 is positioned parallel to the first drive assembly 81 below it, with the second drive assembly 82 positioned closer to the second mounting surface 52. The side of the first drive assembly 81 closest to the second mounting surface and the side of the second drive assembly 82 furthest from the second mounting surface are staggered.

[0059] The travel ranges of the first head 71 and the second head 72 overlap at least partially, and the travel ranges of the third head 73 and the fourth head 74 overlap at least partially; wherein, the crossbeam 5 is provided with a first limiting structure A and a second limiting structure B, the first limiting structure A is used to limit the first head 71 when it moves into the travel range of the second head 72; the second limiting structure B is used to limit the fourth head 74 when it moves into the travel range of the third head 73.

[0060] For example, when it is necessary to ensure that the second head 72 has a maximum displacement stroke, the first limiting structure A is used to limit the first head 71, dividing the stroke of the first head 71 into two parts, so that the first head 71 cannot move to the part where the strokes of the first head 71 and the second head 72 overlap. The first limiting structure A allows the first head 71 to move to the left side of the first limiting structure A (see reference). Figure 3 (Direction) movement. Similarly, when it is necessary to ensure the maximum displacement stroke of the third head 73, the fourth head 74 is limited by the second limiting structure B, so that the fourth structure 74 cannot move to the overlapping part of the stroke of the third head 73 and the fourth head 74. The principle is the same as ensuring the maximum displacement stroke of the second head 72.

[0061] In addition, depending on the actual situation, a first limiting structure A can be set to limit the movement of the first machine head 71 to the intersection of the first drive assembly 81 and the second drive assembly 82, that is, to restrict the first machine head 71 from moving towards... Figure 1 The movement to the right. The second limiting structure B limits the movement of the fourth machine head 74 to the part where the third drive assembly 83 and the fourth drive assembly 84 intersect.

[0062] Specifically, the first limiting structure A is positioned to prevent the first machine head 71 from entering the intersection of the first drive assembly 81 and the second drive assembly 82. For example, when the second machine head 72 requires processing within its maximum displacement range, the first limiting structure A is used to limit the first machine head 71, preventing it from moving to the intersection of the first drive assembly 81 and the second drive assembly 82, thus avoiding interference between the first machine head 71 and the second machine head 72.

[0063] The first limiting structure A can be specifically set at the position where the first drive assembly 81 and the second drive assembly 82 begin to intersect, thus restricting the first machine head 71 from moving to the intersecting part. Similarly, the second limiting structure B can be set at the position where the third drive assembly 83 and the fourth drive assembly 84 begin to intersect, as shown in the reference. Figure 3 When it is necessary to ensure that the first head 71 has maximum displacement, the second head 72 can be restricted from entering the intersecting part of the first drive assembly 81 and the second drive assembly 82. The first guide rail 61 and the third guide rail 63 are symmetrically arranged, the second guide rail 62 and the fourth guide rail 64 are symmetrically arranged, the first drive assembly 81 and the fourth drive assembly 84 are symmetrically arranged, and the second drive assembly 82 and the third drive assembly 83 are symmetrically arranged. The principle and usage of the third drive assembly 83 and the fourth drive assembly 84 are the same as those of the first drive assembly 81 and the second drive assembly 82, and will not be described in detail here.

[0064] Furthermore, the limiting structure is a rotatable structure. For example, when the first machine head 71 needs to be limited, the first limiting structure A is rotated so that the first limiting structure A blocks the first guide rail 61 into two sections. The first limiting structure A blocks the stroke of the first machine head 71. When the limiting is no longer needed, the first limiting structure A is reset.

[0065] In one embodiment, reference Figure 1 and Figure 2 A third limiting structure C is also provided on one side of the first mounting surface 51 of the crossbeam 5. The third limiting structure C is located above the first mounting surface and is used to limit the movement of the second head 72 to the stroke range of the first head 71. Furthermore, it can limit the movement of the third head 71 to the part where the first drive assembly 81 and the second drive assembly 82 intersect.

[0066] A fourth limiting structure D is also provided on one side of the second mounting surface 52 of the crossbeam 5. The fourth limiting structure D is located above the second mounting surface and is used to limit the movement of the third machine head 73 to the stroke range of the fourth machine head 74. Furthermore, it can limit the movement of the third machine head 73 to the intersection of the third drive assembly 83 and the fourth drive assembly 84. The first limiting structure A, the third limiting structure C, the fourth limiting structure D, and the second limiting structure B are arranged sequentially. The installation positions of the first limiting structure A, the second limiting structure B, the third limiting structure C, and the fourth limiting structure D can be referenced. Figure 3 .

[0067] For example, when the first head 71 is required for machining with maximum displacement, the second head 72 is restricted outside the stroke range of the first head 71, or outside the intersection of the first drive assembly 81 and the second drive assembly 82, to avoid interference between the second head 72 and the first head 71. Similarly, when the fourth head 74 is required for machining with maximum displacement, the third head 73 is restricted outside the intersection of the third drive assembly 83 and the fourth drive assembly 84. The principle has been explained in detail in the above embodiments and will not be repeated here.

[0068] In one embodiment, reference Figure 3 The machine tool also includes a detection module 9 mounted on the crossbeam 5, comprising a first detection module 91, a second detection module 92, a third detection module 93, and a fourth detection module 94.

[0069] The first detection module 91 is located at the upper end of the crossbeam 5, adjacent to the intersection of the first drive assembly 81 and the second drive assembly 82. This module uses a non-contact sensor (such as a photoelectric sensor or a laser sensor) to monitor the position of the first machine head 71 in real time. When the first machine head 71 enters the intersection area of ​​the first drive assembly 81 and the second drive assembly 82, or enters the travel range of the second machine head 72, a first alarm signal is immediately issued to remind the operator to pay attention and take appropriate measures to avoid a collision accident.

[0070] The second detection module 92 is located at the lower or upper end of the crossbeam 5, also at the intersection of the first drive assembly 81 and the second drive assembly 82. This module also uses a non-contact sensor to monitor the position of the second machine head 72 in real time. When the second machine head 72 is detected to enter the intersection area of ​​the first drive assembly 81 and the second drive assembly 82, or to enter the travel range of the first machine head 71, a first alarm signal (or a specific second alarm signal to distinguish alarms from different machine heads 7) is issued to ensure the safe operation of the machine tool.

[0071] The third detection module 93 is located at the upper end of the crossbeam 5, adjacent to the intersection of the third drive assembly 83 and the fourth drive assembly 84. This module also uses a non-contact sensor to monitor the position of the third head 73 in real time. When the third head 73 is detected to enter the intersection area of ​​the third drive assembly 83 and the fourth drive assembly 84, or to enter the travel range of the fourth head 74, a third alarm signal is immediately issued to alert the operator.

[0072] The fourth detection module 94 is located at the lower end of the crossbeam 5, at the intersection of the third drive assembly 83 and the fourth drive assembly 84. This module also uses a non-contact sensor to monitor the position of the fourth machine head 74 in real time. When the fourth machine head 74 enters the intersection area of ​​the third drive assembly 83 and the fourth drive assembly 84, or enters the travel range of the third machine head 73, a fourth alarm signal is issued to ensure the overall safety of the machine tool.

[0073] The machine tool is equipped with an alarm module 10, which includes a first alarm module 101, a second alarm module 102, a third alarm module 103, and a fourth alarm module 104. The first alarm module 101 is connected to the first detection module 91 and is used to issue an alarm based on a first alarm signal. The second alarm module 102 is connected to the second detection module 92 and is used to issue an alarm based on a second alarm signal. The third alarm module 103 is connected to the third detection module 93 and is used to issue an alarm based on a third alarm signal. The fourth alarm module 104 is connected to the fourth detection module 94 and is used to issue an alarm based on a fourth alarm signal.

[0074] The alarm module 10 can be an alarm light, buzzer, or other alarm device, as well as an emergency stop button. When any alarm module issues an alarm signal, the alarm device will be activated immediately to alert the operator. Simultaneously, the operator can quickly stop the machine tool using the emergency stop button to avoid potential safety risks. This embodiment of the machine tool, through the addition of the detection module 9, significantly improves the safety and reliability of the machine tool. Furthermore, the machine tool has a compact and stable overall structure, high processing efficiency, and is suitable for processing various complex workpieces.

[0075] This embodiment provides a highly integrated and intelligent multi-head machining tool. This machine tool not only possesses precision machining capabilities and a high-efficiency drive system, but also achieves real-time monitoring and intelligent control of the machine tool's operating status through the interaction between the integrated control system 100 and the detection module 9. The detection module 9 includes a first detection module 91 to a fourth detection module 94, respectively located at the upper and lower ends of the crossbeam 5, for real-time monitoring of the position of each head 7, and issuing corresponding alarm signals when a head 7 is detected entering the intersecting area of ​​the drive assembly 8.

[0076] The control system 100 can be built based on a high-performance industrial computer or programmable logic controller (PLC), possessing powerful data processing and logic control capabilities. When the first detection module 91 issues a first alarm signal, the control system 100 immediately identifies that the first machine head 71 may have entered the interleaving area, and then controls the first drive component 81 to decelerate or stop to avoid collision with the second machine head 72. Furthermore, it can notify personnel to use the corresponding limit structure to limit the first machine head 71.

[0077] When the second detection module 92 issues a second alarm signal, the control system 100 also recognizes that the second machine head 72 may have entered the interleaved area and controls the second drive component 82 to decelerate or stop. Furthermore, it can notify personnel to use the corresponding limit structure to limit the second machine head 72.

[0078] When the third detection module 93 issues a third alarm signal or when the fourth detection module 94 issues a fourth alarm signal, the control system identifies that the third machine head 73 or the fourth machine head 74 may have entered the interleaved area, and then controls the corresponding drive component 8 to decelerate or stop.

[0079] The control system 100 also features fault self-diagnosis and safety protection strategies, enabling automatic emergency shutdown upon detecting abnormal conditions to ensure the safety of the machine tool and workpiece. The machine tool is equipped with a touchscreen or keyboard and mouse for human-machine interaction, allowing operators to monitor the machine tool's operating status in real time, receive alarm information, and make necessary operational adjustments. In this embodiment, the machine tool integrates the interaction logic of the control system, detection module 9, and drive components 8, achieving real-time monitoring and intelligent control of the machine tool's operating status, significantly improving its safety and reliability. Simultaneously, the machine tool boasts a compact and stable overall structure, high processing efficiency, and is suitable for processing various complex workpieces, providing strong support for modern manufacturing.

[0080] In one embodiment, reference Figure 2 The machine tool of this application achieves higher machining accuracy and stronger load-bearing capacity by optimizing the layout of the drive assembly 8 and adding a locking structure. The first drive assembly 81 and the fourth drive assembly 84 are positioned far apart from each other, respectively driving the first head 71 and the fourth head 74 located at both ends of the crossbeam 5. This layout helps reduce mutual interference between the drive assemblies 8 and improves the overall stability of the machine tool. The second drive assembly 82 and the third drive assembly 83 are positioned close to each other, respectively driving the second head 72 and the third head 73 located in the middle of the crossbeam 5. Because these two drive assemblies 8 are positioned close together, the space of the crossbeam 5 can be utilized more effectively, while also facilitating maintenance and adjustment.

[0081] The machine tool also includes a first locking structure E and a second locking structure F. The first locking structure E is mounted on the crossbeam 5, located at the end of the first mounting surface 51 and on the side away from the second mounting surface 52, and is used to lock the first machine head 71. This locking structure uses mechanical locking or electromagnetic locking to prevent positional displacement caused by vibration or external force. For example, if the first machine head 71 is moved to the leftmost position of its displacement orientation, the first locking structure E can be used to lock the first machine head 71, preventing it from moving towards the second machine head 72. The second locking structure F is also mounted on the crossbeam 5, located at the end of the second mounting surface 52 and on the side away from the first mounting surface 51, and is used to lock the fourth machine head 74. This locking structure is used to improve the stability of the machine tool. The mounting positions of the first locking structure E and the second locking structure F can be referenced. Figure 3 .

[0082] In actual operation, when the second machine head 72 is processing, the first machine head 71 can be moved to the far left to provide maximum clearance for the movement of the second machine head 72, facilitating its processing. Similarly, the fourth machine head 74 can be moved to the far right to provide maximum clearance for the third machine head 73.

[0083] The machine tool is also equipped with safety protection measures such as an emergency stop button and limit switches to ensure rapid shutdown in emergencies and prevent accidents. In this embodiment, the machine tool achieves higher machining accuracy and stronger load-bearing capacity by optimizing the layout of the drive assembly 8 and adding a locking structure. Simultaneously, the machine tool has a comprehensive detection and control system capable of monitoring its operating status in real time and taking necessary protective measures to ensure its safety and reliability. This machine tool is suitable for machining various complex workpieces, providing strong support for modern manufacturing.

[0084] In one embodiment, the machine tool also includes a reset module (not shown in the figure), which enables the machine tool to automatically reset each machine head 7 to the standby position under specific conditions, further improving the automation level and ease of operation of the machine tool.

[0085] The reset module is an independent control unit connected to the control system 100. Upon receiving a reset signal, it sends a command to the control system 100 to control the first machine head 71, the second machine head 72, the third machine head 73, and the fourth machine head 74 to move to a preset standby position. The reset signal can be manually triggered by the operator through the human-machine interface, or it can be automatically triggered by the control system 100 under specific conditions (such as completion of a processing task, detection of a fault, etc.).

[0086] After receiving the command from the reset module, the control system 100 controls each drive component 8 to start according to the preset reset path and speed parameters, driving each machine head 7 to move to the standby position along a predetermined trajectory. The standby position is typically a safe location on the machine tool that does not obstruct other operations, allowing the machine tool to quickly enter the next processing preparation state after reset. For example, the standby position of the first machine head 71 is the leftmost end of its displacement stroke, and the standby position of the third machine head 73 is the rightmost end of its displacement stroke. The machine tool is equipped with a touchscreen or keyboard and mouse for human-machine interaction, allowing operators to view the machine tool status in real time, trigger reset operations, and perform necessary parameter settings and adjustments. The machine tool is also equipped with an emergency stop button, limit switches, and other safety protection measures to ensure safety during reset or machine operation.

[0087] This embodiment of the machine tool, by adding a reset module, achieves the function of automatically resetting each machine head 7 under specific conditions, improving the automation level and ease of operation. Simultaneously, the machine tool also possesses a complete detection and control system 100, capable of monitoring the machine tool's operating status in real time and taking necessary protective measures to ensure the machine tool's safety and reliability. This machine tool is suitable for processing various complex workpieces, providing strong support for modern manufacturing.

[0088] In one embodiment, the crossbeam 5 is a one-piece design, which helps improve the overall rigidity and accuracy of the machine tool and is suitable for high-precision machining requirements. By adopting the one-piece crossbeam 5 design, the machine tool enhances its overall structural rigidity and improves machining accuracy and stability. The one-piece design of the crossbeam 5 helps reduce deformation and errors caused by splicing seams or assembly gaps, thereby improving the overall rigidity and accuracy of the crossbeam 5.

[0089] In addition to being a single-piece design, crossbeam 5 can also be segmented. (See reference) Figure 2 The crossbeam 5 comprises a first sub-crossbeam 53 and a second sub-crossbeam 54, combined with the support structure of the third column 43, thus optimizing the machine tool structure and expanding the machining range. By optimizing the crossbeam 5 structure and adding support columns, the machine tool improves its stability and machining flexibility. The first sub-crossbeam 53 is mounted on the first column 41 and the third column 43, while the second sub-crossbeam 54 is mounted on the third column 43 and the second column 42. This split design allows the crossbeam 5 to more flexibly adapt to different machining needs, while also helping to reduce the weight of a single crossbeam 5 and improve the dynamic performance of the machine tool.

[0090] A first mounting surface 51 is disposed on a first sub-beam 53 for mounting a first drive assembly 81 and a second drive assembly 82. A second mounting surface 52 is disposed on a second sub-beam 54 for mounting a third drive assembly 83 and a fourth drive assembly 84.

[0091] The first drive assembly 81 to the fourth drive assembly 84 are respectively mounted on the corresponding mounting surfaces of the first sub-beam 53 and the second sub-beam 54, and are responsible for driving the corresponding first machine head 71 to fourth machine head 74 to move on the crossbeam 5. These drive assemblies 8 can be servo motors, stepper motors, or linear motors, etc., and the appropriate type and specifications are selected according to the processing requirements. In this embodiment, the machine tool achieves optimization of the machine tool structure and expansion of the processing range by adopting a split crossbeam 5 design and adding a support structure of the third column 43.

[0092] In one embodiment, reference Figure 2 The machine tool's guideway assembly 6 includes six guideways: a first guideway 61, a second guideway 62, a third guideway 63, a fourth guideway 64, a fifth guideway 65, and a sixth guideway. The first guideway 61, the second guideway 62, and the third guideway 63 are arranged alternately on the first mounting surface 51 from top to bottom. This means they are arranged vertically but maintain a certain interval to facilitate the movement and positioning of the machine head 7. Similarly, the fourth guideway 64, the fifth guideway 65, and the sixth guideway 66 are also arranged alternately on the second mounting surface 52 from top to bottom. These two mounting surfaces are used to support different machining operations or meet different machining requirements.

[0093] The first head 71 and the second head 72 are movably mounted on the first guide rail 61, the second guide rail 62, and the third guide rail 63. This means that the two heads 71 ​​can move along a predetermined path on these guide rails to achieve precise positioning and flexibility in machining operations. A first drive assembly 81 is disposed between the first guide rail 61 and the second guide rail 62 to drive the movement of the first head 71. A second drive assembly 82 is disposed between the second guide rail 62 and the third guide rail 63 to control the movement of the second head 72.

[0094] The third and fourth machine heads 73 and 74 are movably mounted on the fourth guide rail 64, fifth guide rail 65, and sixth guide rail 66, similar to the configuration of the first and second machine heads 71, but located on different mounting surfaces and potentially used for different machining tasks. A third drive assembly 83 is positioned between the fifth and sixth guide rails 65 and 66 to drive the movement of the third machine head 73. A fourth drive assembly 84 is positioned between the fourth and fifth guide rails 64 and to drive the movement of the fourth machine head 74. This configuration provides the machine tool with high flexibility and machining accuracy, suitable for a variety of complex machining tasks. Each machine head 7 can move independently on its corresponding guide rail, while the drive assembly 8 ensures the precision and controllability of this movement. This structure is particularly suitable for machining applications requiring high precision and multi-axis control, such as precision machining and mold making.

[0095] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A machine tool, comprising a base (1), a worktable (2), a tool magazine (3), a column (4), and a crossbeam (5), wherein the worktable (2) and the tool magazine (3) are disposed on the base (1), the column (4) comprises a first column (41) and a second column (42), the first column (41) and the second column (42) are disposed on both sides of the base (1), the crossbeam (5) is spanned across the first column (41) and the second column (42), and the crossbeam (5) is provided with a guide rail assembly (6) for mounting a machine head (7) along its length; the crossbeam (5) comprises a first mounting surface (51) and a second mounting surface (52), the guide rail assembly (6) is provided with a movable first machine head (71), a second machine head (72), a third machine head (73), and a fourth machine head (74), and the crossbeam (5) is provided with a drive assembly (8) for driving the machine head (7), characterized in that, The drive assembly (8) includes a first drive assembly (81), a second drive assembly (82), a third drive assembly (83), and a fourth drive assembly (84) respectively connected to the first machine head (71), the second machine head (72), the third machine head (73), and the fourth machine head (74). The first drive assembly (81) and the second drive assembly (82) are disposed on the first mounting surface (51), and the third drive assembly (83) and the fourth drive assembly (84) are disposed on the second mounting surface (52). The stroke ranges of the first machine head (71) and the second machine head (72) overlap at least partially, and the stroke ranges of the third machine head (73) and the fourth machine head (74) overlap at least partially. The crossbeam (5) is provided with a first limiting structure (A) and a second limiting structure (B). The first limiting structure (A) is used to limit the first machine head (71) when it moves to the travel range of the second machine head (72). The second limiting structure (B) is used to limit the fourth machine head (74) when it moves to the travel range of the third machine head (73).

2. The machine tool according to claim 1, characterized in that, The crossbeam (5) is also provided with a third limiting structure (C) and a fourth limiting structure (D). The third limiting structure (C) is used to limit the movement of the second machine head (72) to the travel range of the first machine head (71). The fourth limiting structure (D) is used to limit the movement of the third machine head (73) to the travel range of the fourth machine head (74).

3. The machine tool according to claim 2, characterized in that, The first limiting structure (A) and the third limiting structure (C) are disposed above the first mounting surface (51) of the crossbeam (5), and the second limiting structure (B) and the fourth limiting structure (D) are disposed above the second mounting surface (52) of the crossbeam (5). The first limiting structure (A), the third limiting structure (C), the fourth limiting structure (D), and the second limiting structure (B) are arranged in sequence.

4. The machine tool according to claim 2 or 3, characterized in that, It also includes a detection module (9) disposed on the crossbeam (5); the detection module (9) includes: The first detection module (91) is located at the intersection of the first drive component (81) and the second drive component (82). The first detection module (91) is used to issue a first alarm signal when it detects that the first machine head (71) is located at the intersection of the first drive component (81) and the second drive component (82) or enters the travel range of the second machine head (72). The second detection module (92) is located at the intersection of the first drive component (81) and the second drive component (82). The second detection module (92) is used to issue a second alarm signal when it detects that the second head (72) is located at the intersection of the first drive component (81) and the second drive component (82) or enters the travel range of the first head (71). The third detection module (93) is located at the intersection of the third drive component (83) and the fourth drive component (84). The third detection module (93) is used to issue a third alarm signal when it detects that the third machine head (73) is located at the intersection of the third drive component (83) and the fourth drive component (84) or enters the travel range of the fourth machine head (74). The fourth detection module (94) is located at the intersection of the third drive component (83) and the fourth drive component (84). The fourth detection module (94) is used to issue a fourth alarm signal when it detects that the fourth machine head (74) is located at the intersection of the third drive component (83) and the fourth drive component (84) or enters the travel range of the third machine head (73).

5. The machine tool according to claim 4, characterized in that, It also includes an alarm module (10), which includes: The first alarm module (101) is connected to the first detection module (91) and is used to issue an alarm based on the first alarm signal; The second alarm module (102) is connected to the second detection module (92) and is used to issue an alarm based on the second alarm signal; The third alarm module (103) is connected to the third detection module (93) and is used to issue an alarm based on the third alarm signal; The fourth alarm module (104) is connected to the fourth detection module (94) and is used to issue an alarm based on the fourth alarm signal.

6. The machine tool according to claim 5, characterized in that, The machine tool also includes a control system (100) connected to the detection module (9) and the drive component (8). The control system (100) is used to control the start / stop of the first drive component (81), the second drive component (82), the third drive component (83) and the fourth drive component (84) respectively based on the first alarm signal, the second alarm signal, the second alarm signal and the fourth alarm signal.

7. The machine tool according to claim 6, characterized in that, The first drive component (81) and the fourth drive component (84) are disposed far apart from each other, while the second drive component (82) and the third drive component (83) are disposed close to each other; The machine tool further includes a first locking structure (E) and a second locking structure (F) disposed on the crossbeam (5). The first locking structure (E) is located at the end of the first mounting surface (51) and on the side away from the second mounting surface (52), and is used to lock the first machine head (71). The second locking structure (F) is located at the end of the second mounting surface (52) and on the side away from the first mounting surface (51), and is used to lock the fourth machine head (74).

8. The machine tool according to claim 6, characterized in that, It also includes a reset module for issuing a reset signal, the reset module being connected to the control system (100), and based on the reset signal, the control system (100) controlling the first machine head (71), the second machine head (72), the third machine head (73) and the fourth machine head (74) to move to the standby position.

9. The machine tool according to claim 4, characterized in that, The crossbeam (5) includes a first sub-crossbeam (53) and a second sub-crossbeam (54), with the first mounting surface (51) disposed on the first sub-crossbeam (53) and the second mounting surface (52) disposed on the second sub-crossbeam (54); The machine tool also includes a third column (43) located between the first column (41) and the second column (42), the first sub-beam (53) is mounted on the first column (41) and the third column (43), and the second sub-beam (54) is mounted on the third column (43) and the second column (42).

10. The machine tool according to claim 9, characterized in that, The guide rail assembly (6) includes a first guide rail (61), a second guide rail (62), a third guide rail (63), a fourth guide rail (64), a fifth guide rail (65), and a sixth guide rail (66). The first guide rail (61), the second guide rail (62), and the third guide rail (63) are arranged in a series of intervals from top to bottom on the first mounting surface (51), and the fourth guide rail (64), the fifth guide rail (65), and the sixth guide rail (66) are arranged in a series of intervals from top to bottom on the second mounting surface (52). The first machine head (71) and the second machine head (72) are movably disposed on the first guide rail (61), the second guide rail (62) and the third guide rail (63), the first drive component (81) is disposed between the first guide rail (61) and the second guide rail (62), and the second drive component (82) is disposed between the second guide rail (62) and the third guide rail (63); The third head (73) and the fourth head (74) are movably disposed on the fourth guide rail (64), the fifth guide rail (65) and the sixth guide rail (66), the third drive assembly (83) is disposed between the fifth guide rail (65) and the sixth guide rail (66), and the fourth drive assembly (84) is disposed between the fourth guide rail (64) and the fifth guide rail (65).

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